.list-wrap {
  width: 1000px;
  margin: 100px auto;
}

.list-tb {
  width: 100%;
  border: 1px solid #ccc;
  border-collapse: collapse;
  color: #333;
}

.list-tb caption {
  height: 60px;
}

.list-tb tr {
  height: 44px;
}

.list-tb td,
.list-tb th {
  position: relative;
  border-bottom: 1px solid #ccc;
  text-align: center;
}

.list-tb .search-row {
  text-align: left;
}

.list-tb .field-tt {
  background-color: #eee;
}

.list-tb td .nav-item {
  float: left;
  width: 130px;
  height: 30px;
  margin: auto 15px;
  background-color: #ddd;
  text-align: center;
  line-height: 30px;
}

.list-tb td .nav-item .nav-lk {
  display: block;
  height: 100%;
  color: #999;
}

.list-tb td .nav-item.active {
  background-color: #000;
}

.list-tb td .nav-item.active .nav-lk {
  color: #fff;
}

.list-tb .search-row {
  display: none;
}

/* table的显示属性是 table */
/* tr的显示属性是 table-row */
.list-tb .search-row.show {
  display: table-row;
}

.list-tb .search-cell .search-wrap {
  position: relative;
  width: 300px;
  height: 30px;
}

.list-tb .search-cell .search-wrap .fa {
  position: absolute;
  left: 25px;
  top: 5px;
}

.list-tb .search-cell .search-input {
  width: 100%;
  height: 100%;
  margin-left: 15px;
  border: 1px solid #ddd;
  font-size: 16px;
  text-indent: 30px;
}

.list-tb .tip-row.hide {
  display: none;
}

.list-tb .warning-tip {
  color: #999;
}

.list-tb .list-btn {
  height: 30px;
  padding: 0 15px;
  color: #fff;
  font-size: 14px;
}

.list-tb .list-btn.delete {
  background-color: red;
}

.list-tb .list-btn.regain {
  background-color: orange;
}

.list-tb .course-name-cell {
  text-align: left;
  padding-left: 15px;
}

.list-tb .course-name-input {
  display: none;
  position: absolute;
  top: 6px;
  left: 15px;
  width: 100%;
  height: 30px;
  border: 1px solid #ddd;
  text-indent: 10px;
  font-size: 14px;
}

.list-tb .course-name-input.show {
  display: inline-block;
}

.list-tb .page-btn-row {
  display: none;
}

.list-tb .page-btn-row.show {
  display: table-row;
}

.list-tb .page-btn-list {
  width: 100%;
  margin-left: 15px;
}

.list-tb .btn-item {
  float: left;
  width: 60px;
  height: 100%;
}

.list-tb .btn-item .page-btn {
  display: block;
  width: 22px;
  height: 22px;
  background-color: #ddd;
  text-align: center;
  line-height: 22px;
  font-size: 14px;
}

.list-tb .btn-item.cur .page-btn {
  background-color: #000;
  color: #fff;
}
